HCNY-LD , LHE


Noise Levels at Different Periods

The table below gives the decibel 10% noise level (in db) for each month in several period bands. The 10% noise level is defined as the signal level not exceeded 10% of the time, based on hourly measurements. Each entry in the table is color coded with reference to the New Low Noise Model (NLNM, Peterson, 1993):
navy, -6 db < value-NLNM < -3 db
blue, -3 db < value-NLNM < 3 db
aqua, 3 db < value-NLNM < 6 db
lime, 6 db < value-NLNM < 9 db
yellow, 9 db < value-NLNM < 12 db
orange, 12 db < value-NLNM < 15 db
red, 15 db < value-NLNM < 20 db
fuchsia, 20 db < value-NLNM < 25 db
silver, value-NLNM < -6 db, value-NLNM > 25 db

Black indicates that there was an insufficient number of hourly measurements to calculate a noise level.

Noise levels (PSD) in decibels
Month Chan. Qual. # obs. 518s 439s 373s 316s 268s 228s 193s 164s 139s 118s 100s 85s 72s 61s 52s 44s 37s 32s 27s 23s 19s 16s 14s 12s 10s
202005 LHE AR 204 -10 -10 -10 -10 -10 -10 -10 -10 -10 -10 -10 -10 -10 -10 -10 -10 -10 -10 -10 -10 -10 -10 -10 -10 -10
202004 LHE AR 719 -10 -10 -10 -10 -10 -10 -10 -10 -10 -10 -10 -10 -10 -10 -10 -10 -10 -10 -10 -10 -10 -10 -10 -10 -10
202003 LHE AR 744 -10 -10 -10 -10 -10 -10 -10 -10 -10 -10 -10 -10 -10 -10 -10 -10 -10 -10 -10 -10 -10 -10 -10 -10 -10
202002 LHE AR 686 -10 -10 -10 -10 -10 -10 -10 -10 -10 -10 -10 -10 -10 -10 -10 -10 -10 -10 -10 -10 -10 -10 -10 -10 -10
202001 LHE AR 743 -10 -10 -10 -10 -10 -10 -10 -10 -10 -10 -10 -10 -10 -10 -10 -10 -10 -10 -10 -10 -10 -10 -10 -10 -10
201912 LHE AR 744 -10 -10 -10 -10 -10 -10 -10 -10 -10 -10 -10 -10 -10 -10 -10 -10 -10 -10 -10 -10 -10 -10 -10 -10 -10
201911 LHE AR 719 -10 -10 -10 -10 -10 -10 -10 -10 -10 -10 -10 -10 -10 -10 -10 -10 -10 -10 -10 -10 -10 -10 -10 -10 -10
201910 LHE AR 720 -10 -10 -10 -10 -10 -10 -10 -10 -10 -10 -10 -10 -10 -10 -10 -10 -10 -10 -10 -10 -10 -10 -10 -10 -10
201909 LHE AR 655 -10 -10 -10 -10 -10 -10 -10 -10 -10 -10 -10 -10 -10 -10 -10 -10 -10 -10 -10 -10 -10 -10 -10 -10 -10
201908 LHE AR 736 -10 -10 -10 -10 -10 -10 -10 -10 -10 -10 -10 -10 -10 -10 -10 -10 -10 -10 -10 -10 -10 -10 -10 -10 -10
201907 LHE AR 742 -10 -10 -10 -10 -10 -10 -10 -10 -10 -10 -10 -10 -10 -10 -10 -10 -10 -10 -10 -10 -10 -10 -10 -10 -10
201906 LHE AR 689 -10 -10 -10 -10 -10 -10 -10 -10 -10 -10 -10 -10 -10 -10 -10 -10 -10 -10 -10 -10 -10 -10 -10 -10 -10
201905 LHE AR 740 -10 -10 -10 -10 -10 -10 -10 -10 -10 -10 -10 -10 -10 -10 -10 -10 -10 -10 -10 -10 -10 -10 -10 -10 -10
201904 LHE AR 720 -10 -10 -10 -10 -10 -10 -10 -10 -10 -10 -10 -10 -10 -10 -10 -10 -10 -10 -10 -10 -10 -10 -10 -10 -10
201903 LHE AR 742 -148 -152 -153 -156 -160 -162 -163 -166 -167 -169 -170 -170 -170 -170 -170 -169 -169 -169 -168 -168 -168 -168 -167 -167 -167
201902 LHE AR 669 -155 -158 -160 -162 -165 -167 -168 -171 -172 -173 -174 -175 -175 -174 -174 -174 -173 -173 -172 -172 -172 -171 -171 -170 -170
201901 LHE AR 744 -155 -158 -159 -162 -165 -167 -169 -171 -173 -174 -174 -174 -174 -173 -173 -172 -172 -171 -171 -170 -169 -169 -168 -168 -167
201812 LHE AR 725 -159 -161 -163 -166 -167 -169 -171 -173 -174 -176 -176 -176 -176 -176 -175 -175 -174 -173 -172 -172 -171 -171 -170 -169 -169
201811 LHE AR 711 -148 -149 -150 -152 -153 -155 -157 -158 -160 -160 -161 -162 -163 -163 -163 -163 -164 -164 -164 -162 -157 -154 -152 -153 -152
201810 LHE AR 704 -148 -149 -151 -153 -154 -156 -157 -158 -159 -160 -160 -161 -162 -162 -164 -164 -165 -165 -165 -164 -161 -156 -154 -152 -151
201809 LHE AR 670 -149 -151 -153 -154 -155 -157 -158 -158 -159 -159 -160 -160 -161 -162 -162 -163 -164 -164 -164 -164 -161 -158 -157 -156 -154
201808 LHE AR 710 -151 -152 -153 -155 -156 -157 -158 -158 -159 -159 -159 -160 -160 -161 -161 -162 -163 -163 -163 -164 -163 -161 -160 -160 -158
201807 LHE AR 664 -151 -154 -155 -155 -156 -157 -158 -158 -159 -159 -159 -159 -160 -160 -161 -161 -162 -162 -163 -163 -161 -159 -160 -160 -158
201806 LHE AR 709 -154 -155 -156 -157 -158 -158 -159 -160 -160 -160 -160 -160 -161 -161 -162 -162 -163 -164 -164 -164 -163 -160 -160 -160 -158
201805 LHE AR 736 -152 -153 -154 -155 -155 -157 -157 -157 -158 -158 -159 -159 -159 -160 -160 -161 -161 -162 -162 -163 -161 -159 -159 -159 -156
201804 LHE AR 714 -152 -153 -153 -154 -155 -156 -156 -157 -157 -158 -158 -158 -158 -159 -159 -160 -160 -161 -162 -162 -161 -158 -157 -157 -156
201803 LHE AR 744 -149 -150 -151 -153 -153 -154 -154 -155 -155 -155 -156 -156 -156 -157 -157 -158 -158 -158 -159 -158 -158 -156 -154 -153 -153
201802 LHE AR 64 999 999 999 999 999 999 999 999 999 999 999 999 999 999 999 999 999 999 999 999 999 999 999 999 999